Gary, Indiana. took the number two spot. Jackson, Mississippi took number three, though they were nowhere close to Daytona Beach, with 3.84 and 3.79 times the median rate of car deaths.
Among small towns — those with populations under 50,000 — Dayton, Texas (located in the greater Houston metro) topped the list with a crash death rate an astonishing 12.4 times the national median
Source: https://docs.google.com/spreadsheets/d/1JoWMRt2vMV2uwlzPc4InSJlKckEHr5WyxYbXTIIIjHo/edit?gid=0#gid=0
And Daytona Beach in particular is a NASCAR speedway town.
Also, as a non-floridian from the northeast, all the weirdest/craziest people from my hometown moved down to Florida at one point or another.
I would guess that isn’t a phenomena unique to my town.